What if a girlfriend sends a text message to her ex-boyfriend?

If she broke up with her ex-boyfriend, it was a breakup. If she just wants to be angry with you, it means that she still cares about you, which means that she wants you to be jealous. A woman will take the initiative to find her ex-boyfriend, which is nothing more than quarreling with her current boyfriend and being wronged, so she will naturally think of her ex-boyfriend. You should take the initiative to find her and coax her.